CN204281129U - Hoisting crane and counterbalanced weight thereof - Google Patents

Hoisting crane and counterbalanced weight thereof Download PDF

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Publication number
CN204281129U
CN204281129U CN201420647320.1U CN201420647320U CN204281129U CN 204281129 U CN204281129 U CN 204281129U CN 201420647320 U CN201420647320 U CN 201420647320U CN 204281129 U CN204281129 U CN 204281129U
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China
Prior art keywords
counterweight block
counterbalanced weight
chain
hole
turntable
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CN201420647320.1U
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Chinese (zh)
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潘丹丹
李伟涛
马宁
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Construction Machinery Branch of XCMG
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Construction Machinery Branch of XCMG
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Priority to CN201420647320.1U priority Critical patent/CN204281129U/en
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Abstract

The utility model discloses a kind of counterbalanced weight, comprise the lower counterweight block of the turntable that is connected be positioned at bottom described counterbalanced weight, at least one laminates the upper counterweight block being connected to described lower counterweight block top, described lower counterweight block and upper counterweight block offer corresponding chain through hole, and chain runs through corresponding described chain through hole to connect described lower counterweight block and described upper counterweight block; The two ends of described chain are fixed on bottom and the top of described counterbalanced weight respectively.By the optimal design to counterbalanced weight structure, promote the convenience that counterbalanced weight is installed, dismantled, and improve stability and the fixing of counterbalanced weight connection.On this basis, the utility model also provides a kind of hoisting crane with above-mentioned counterbalanced weight.

Description

Hoisting crane and counterbalanced weight thereof
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of counterbalanced weight.In addition, the utility model also relates to a kind of hoisting crane with this counterbalanced weight.
Background technology
In technical field of engineering machinery, counterbalanced weight is widely used in the performance pouring weight meeting construction machinery and equipment, particularly in crawler belt type dynamic compaction machine, crawler crane, arranges that counterbalanced weight can guarantee the stability of its lifting performance and car load.
Usually, counterbalanced weight is installed on the rear portion of the turntable of construction machinery and equipment, because the working condition of construction machinery and equipment is all more severe.Such as, dynamic compaction machinery in the course of the work, can produce larger rocking, and the installation that therefore counterbalanced weight is reliable, stable directly has influence on the serviceability of car load.And counterbalanced weight weight is large, existing counterbalanced weight generally comprises lower counterweight block 10 ', upper counterweight block 20 ', as shown in Figure 1, existing lower counterweight block 10 ', midway location bottom it has offered mounting groove 11 ', and its mounting groove 11 ' is provided with the bolt hole 12 ' of the turntable connecting portion 30 ' that is connected, shown in composition graphs 2 and Fig. 3, bolt is through to its underpart by the top of lower counterweight block 10 ', thus the link span 31 ' of be connected lower counterweight block 10 ' and turntable connecting portion 30 '.Adopt this kind of connection mode, the mounting groove 11 ' offered causes the center-of-gravity position skew of lower counterweight block 10 ' comparatively large, and directional tagging is not obvious; Meanwhile, the top of the outstanding lower counterweight block 10 ' of turntable tie bolt 13 ', not only wasting space position but also limit and install counterweight block 20 ', cause installing, unloading process all needs to consume larger work capacity, operating process is more complicated.
In addition, lower counterweight block 10 ' of the prior art and upper counterweight block 20 ' are connected and fixed by upper counterweight block tie bolt 14 ', as shown in Figure 3, due to the size of counterbalanced weight and weight larger, instantly, when counterweight block 10 ' top connects upper counterweight block 20 ', need longer upper counterweight block tie bolt 14 ' to connect, its stability and reliability connected is lower, easily cause Joint failure in Long-Time Service process, and installing/dismounting is loaded down with trivial details.
In view of this, the structure how design balance weighs, the convenience, the fixing that promote counterbalanced weight connection are those skilled in the art's problem demanding prompt solutions.
Utility model content
Based on the defect existed in prior art, the technical problems to be solved in the utility model is to provide a kind of counterbalanced weight, by the optimal design to counterbalanced weight structure, promote the convenience that counterbalanced weight is installed, dismantled, and improve stability and the fixing of counterbalanced weight connection.On this basis, the utility model also provides a kind of hoisting crane with this counterbalanced weight.
A kind of counterbalanced weight that the utility model provides, comprise the lower counterweight block of the turntable that is connected be positioned at bottom described counterbalanced weight, at least one laminates the upper counterweight block being connected to described lower counterweight block top, described lower counterweight block and upper counterweight block offer corresponding chain through hole, and chain runs through corresponding described chain through hole to connect described lower counterweight block and described upper counterweight block; The two ends of described chain are fixed on bottom and the top of described counterbalanced weight respectively.
Adopt said structure, the chain through hole of counterweight block and the chain through hole of upper counterweight block under the running through of chain, and the two ends of chain are fixed, thus be convenient to compress lower counterweight block and upper counterweight block, promote the reliability that it connects.When adopting this kind of connection mode, the number of the upper counterweight block be connected on lower counterweight block can be selected according to the weight of counterbalanced weight, to meet the concrete counterweight demand of complete machine; That is, run through chain through hole by chain and connect lower counterweight block and upper counterweight block, can increase successively at the top of the upper counterweight block of top, the quantity of counterweight block in minimizing, the heavy weight of adjustment is carried out with this, evade and be bolted fixing triviality, guarantee the reliability connected under larger weight.
Alternatively, the bottom end opening of the described chain through hole of described lower counterweight block is provided with stay hook, and the bottom of described chain is hooked in described stay hook.
Alternatively, the top being positioned at the described upper counterweight block on described counterbalanced weight top is provided with holding firmware, described holding firmware comprises clamp, described clamp offers the spacing hole passed for described chain and the clamping hole fixing described chain, the axis being parallel of described spacing hole and described clamping hole and both be communicated with, the aperture of described spacing hole can for the two pitch chains joints be connected of described chain through, the aperture of described clamping hole is only passed for the described chain link of a joint.
Alternatively, described holding firmware also comprises card article, and described card article offers the gap snapped in for described chain link, and described card article is fixed on the connectivity part of described spacing hole and described clamping hole, to fix described chain in described clamping hole.
Alternatively, described holding firmware also comprises the feed screw nut of be connected described clamp and described upper counterweight block, and the periphery of described clamp offers the connecting thread hole coordinated with described leading screw.
Alternatively, the junction of described lower counterweight block and described upper counterweight block, the junction of two described upper counterweight blocks be connected are provided with the positioning convex and detent that match, and described positioning convex embeds described detent to limit the position between the described lower counterweight block that is connected and described upper counterweight block, described upper counterweight block.
Alternatively, the bottom of described lower counterweight block is provided with two positioning grooves, and two link spans of described turntable embed corresponding described positioning groove respectively and fix.
Alternatively, the bottom surface of described positioning groove is provided with bolt hole and locating dowel pin, and described bolt hole is corresponding with the screw of the link span of described turntable, and described locating dowel pin can insert the pin-and-hole described lower counterweight block in location of described link span and the connection location of described turntable.
Alternatively, described bolt hole is set to counterbore, and the head mating the bolt of described bolt hole is set to Long Circle, and the opening of described counterbore is the Long Circle mated with the head of described bolt.
The utility model also provides a kind of hoisting crane, comprises turntable, is fixed on the counterbalanced weight of described turntable, and described counterbalanced weight is claim is above-described counterbalanced weight.
Because above-mentioned counterbalanced weight has above-mentioned technique effect, therefore, the hoisting crane with this counterbalanced weight also should have identical technique effect, does not repeat them here.
Accompanying drawing explanation
Fig. 1 is the structural representation of lower counterweight block in prior art;
Fig. 2 is counterweight block lower shown in Fig. 1 and turntable connection structure schematic diagram;
Fig. 3 is lower counterweight block and upper counterweight block connection structure schematic diagram described in Fig. 1;
Fig. 4 is the lower bottom of counterweight block and the structural representation of turntable junction in detailed description of the invention;
Fig. 5 is the structural representation at the top of lower counterweight block in detailed description of the invention;
Fig. 6 is the cutaway view of Counterweight connection structure in detailed description of the invention;
Fig. 7 is the structural representation of the holding firmware fixing chain top end in Fig. 6.
In Fig. 1 to Fig. 3:
Lower counterweight block 10 ', upper counterweight block 20 ', turntable connecting portion 30 ';
Mounting groove 11 ', bolt hole 12 ', turntable tie bolt 13 ', upper counterweight block tie bolt 14 ', link span 31 '.
In Fig. 4 to Fig. 7:
Lower counterweight block 10, upper counterweight block 20;
Positioning groove 11, bolt hole 12, locating dowel pin 13, chain through hole 14, positioning convex 15, detent 16, holding firmware 17;
Clamp 171, card article 172, spacing hole 171a, clamping hole 171b;
Link span 31.
Detailed description of the invention
Based on the counterbalanced weight Problems existing that prior art provides, core of the present utility model is to provide a kind of counterbalanced weight, by the optimal design to counterbalanced weight structure, promote the convenience that counterbalanced weight is installed, dismantled, and improve stability and the fixing of counterbalanced weight connection.Another core of the present utility model is to provide a kind of hoisting crane with above-mentioned counterbalanced weight.
In order to make the operating personal of the art understand the utility model scheme better, below in conjunction with Figure of description, the utility model is described in further detail.
It should be noted that, the noun of locality " top " occurred herein refer to counterbalanced weight install after direction upward, also can be regarded as, the side that lower counterbalanced weight connects upper counterbalanced weight is " top " portion; " end " refer to counterbalanced weight install after direction downward, also can be regarded as, the side that lower counterbalanced weight connects turntable connecting portion is " end " portion.Should be understood that, the appearance of these nouns of locality is not construed as limiting the scope of the application's request protection.
Refer to shown in Fig. 4 to Fig. 6, wherein, Fig. 4 is the lower bottom of counterweight block and the structural representation of turntable junction in detailed description of the invention; Fig. 5 is the structural representation at the top of lower counterweight block in detailed description of the invention; Fig. 6 is the cutaway view of Counterweight connection structure in detailed description of the invention.
The counterbalanced weight that the utility model provides comprises can interconnective lower counterweight block 10 and upper counterweight block 20, and the bottom of lower counterweight block 10 is connected with the link span 31 of turntable connecting portion, and its superimposed on top connects upper counterweight block 20.Unlike the prior art, lower counterweight block 10 offers the positioning groove 11 of lower counterweight block 10 inside of link span 31 embedding for turntable connecting portion, bolt hole 12 and locating dowel pin 13 is provided with in this positioning groove 11, wherein, locating dowel pin 13 can insert in locating dowel pin 13 hole of link span 31, position relationship when being connected with lower counterweight block 10 with the link span 31 that leads, bolt hole 12 and the corresponding bolt connecting hole one_to_one corresponding on link span 31 can be made, be convenient to fitting operation personnel and quickly and accurately lower counterbalanced weight be connected with turntable.
As shown in Figure 4 and Figure 6, lower counterweight block 10 and upper counterweight block 20 all offer chain through hole 14, the chain through hole 14 of counterweight block 10 and the chain through hole 14 of upper counterweight block 20 under the running through of chain, and the two ends of chain are fixed, thus lower counterweight block 10 and upper counterweight block 20 are compressed connection.In actual installation connection procedure, can counterbalanced weight required for construction machinery and equipment weight and optionally connect lower counterweight block 10 and upper counterweight block 20, to meet the concrete counterweight demand of complete machine; That is, adopt the version of above-mentioned lower counterweight block 10 and upper counterweight block 20, chain through hole 14 is run through by means of only chain, just can easily lower counterweight block 10 or on the top of counterweight block 20 increase successively, the quantity of counterweight block 20 in minimizing, the heavy weight of adjustment is carried out with this, evade and be bolted fixing triviality, guarantee the reliability connected under larger weight.
Further, the two ends of chain adopt adjustable fixed form, to adapt to different connecting length.Particularly, the bottom of the chain through hole 14 of lower counterweight block 10 arranges the stay hook of spacing fixing chain, in the hole by the chain section of the bottom of stay hook hook chain, to limit the bottom position of chain; And the top of chain is fixed by holding firmware 17, as shown in Figure 7, this holding firmware 17 comprises this clamp 171 of clamp 171 and offers spacing hole 171a and clamping hole 171b, both through clamps 171 of axis being parallel, and both are interconnected, that is, spacing hole 171a becomes " 8-shaped " to arrange with clamping hole 171b, and junction communicates.Further, the aperture of spacing hole 171a can for the two pitch chains joints be connected of chain through, and the aperture of clamping hole 171b only for shot joint through.Setting like this, when the top of fixing chain, by chain through spacing hole 171a, then makes the shot of chain save and be positioned at hole, and moved in clamping hole 171b by both junctions, then rotating link chain is fastened in clamping hole to make this chain.
In order to effectively fix chain, this holding firmware 17 also comprises card article 172, and this card article 172 offers the gap snapped in for chain link, when card article 172 is fixed on the connectivity part of spacing hole 171a and clamping hole 171b, also chain link can be snapped in the gap of card article 172, to fix chain in clamping hole 171b.
Further, this clamp 171 is fixed on the top of counterbalanced weight by screw-nut structure, setting like this, distance between the upper counterweight block 20 regulating the relative top of clamp 171 by screw-nut structure, thus guarantee to connect the connecting length between lower counterweight block 10 and upper counterweight block 20, make to compress between interconnective lower counterweight block 10 and upper counterweight block 20, upper counterweight block 20, alleviate the intensity that fitting operation personnel compress connection, and effectively promote the reliability connected.
It should be noted that, under being located at herein, the connecting element of counterweight block 10 lower end is not limited to above-mentioned stay hook, also can be other form, such as, also can be the fixed strip etc. that can insert in the hole of chain section, as long as chain fixedly can be limited in the structure of lower counterweight block 10.
Holding firmware 17 herein is also not limited to above-mentioned clamp 171 structure, also can adopt the form of settling stay hook at the top of the upper counterweight block 20 of top, or spacing structure can be fixed in the top of chain by other.
Certainly, chain is not limited in and is connected with lower counterweight block 10 by fixed part, also can be directly welded in the bottom of lower counterweight block 10.
The shape of chain through hole 14 is not limited to the manhole in this programme; also can be the through hole of other shapes; only need to make chain run through the through hole of lower counterweight block 10 and upper counterweight block 20; therefore, the concrete shape of chain through hole 14 is not construed as limiting the technical scheme of the application's request protection.
In order to promote lower counterweight block 10 and upper counterweight block 20, mutually laminate the stability of the position between the upper counterweight block 20 of connection, also can optimal design further.Please in the lump shown in composition graphs 5 and Fig. 6, be provided with the positioning convex 15 and detent 16 that match in the junction of interconnective two counterweight blocks.
In a kind of specific embodiment, three pairs of positioning convex 15 and detent 16 is provided with between interconnective two counterweight blocks, the three pairs of positioning convex 15 and detent 16 one-tenth triangle are arranged, and to promote the stability of location, effectively evade the dislocation between the counterweight block that is connected.
The cross sectional shape of the positioning convex 15 in this programme is semicircle, the detent 16 matched also is semicircle opening, thus effectively limit the relative movement of two counterweight blocks be connected, certainly, the shape of positioning convex 15 and detent 16 is not limited thereto, its shape also can be square, irregular shape etc., only needs to limit the position relationship between two counterweight blocks that are connected.Meanwhile, it is three right that the logarithm of positioning convex 15 and detent 16 is also not limited to, arrange a pair, two to, four to and upper logarithm, only need to limit accurately and reliably the position between two counterweight blocks that are connected.
For above-described embodiment, also can design further positioning groove 11, to improve the reliability that lower counterweight block 10 is connected with link span 31, evade lower counterweight block 10 center-of-gravity position and produce larger skew.In the lump shown in composition graphs 4 and Fig. 6, the positioning groove 11 of the bottom of lower counterweight block 10 arranges the rectangle positioning groove 11 that can embed for link span 31, and two rectangle positioning grooves 11 are corresponding with link span 31 respectively.Adopt above-mentioned rectangle positioning groove 11 structure, on the one hand, lower counterweight block 10 barycentre offset can be reduced, promote the directional tagging of lower counterweight block 10; On the other hand, limit again the position of link span 31 further by rectangle positioning groove 11, for fixing lower counterweight block 10 and turntable connecting portion provide convenient.
In this programme, lower counterweight block 10 offers the bolt hole 12 of the link span 31 that is connected, in order to evade the connection of the upper counterweight block 20 of bolt interference in inserting bolt hole 12, this bolt hole 12 is set to counterbore, and opening is Long Circle, this bolt adopts the bolt of Long Circle head, to guarantee bolted reliability.Specifically can be shown in Figure 6, adopt said structure, when the bolt of Long Circle head be connected lower counterweight block 10 with link span 31 time, the head of this bolt sinks to the inside of lower counterweight block 10, top for lower counterweight block 10 laminates the upper counterweight block 20 of connection and provides sufficient space, evades the interference that bolt external part connects upper counterweight block 20.
In addition, the utility model also provides a kind of hoisting crane, comprises turntable, is fixed on the counterbalanced weight of turntable, and counterbalanced weight is above-mentioned counterbalanced weight, and other components of this hoisting crane refer to prior art.Because counterbalanced weight has above-mentioned technique effect, therefore, the hoisting crane with this counterbalanced weight also should have identical technique effect, does not repeat them here.
Above counterbalanced weight provided by the utility model and hoisting crane are described in detail.Only set forth for object lesson of the present utility model herein, the explanation of above specific embodiment just understands method of the present utility model and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model feature, if can also make these improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (10)

1. a counterbalanced weight, comprise the lower counterweight block (10) of the turntable that is connected be positioned at bottom described counterbalanced weight, at least one laminates the upper counterweight block (20) being connected to described lower counterweight block (10) top, it is characterized in that, described lower counterweight block (10) and upper counterweight block (20) offer corresponding chain through hole (14), and chain runs through corresponding described chain through hole (14) to connect described lower counterweight block (10) and described upper counterweight block (20); The two ends of described chain are fixed on bottom and the top of described counterbalanced weight respectively.
2. counterbalanced weight according to claim 1, is characterized in that, the bottom end opening of the described chain through hole (14) of described lower counterweight block (10) is provided with stay hook, and the bottom of described chain is hooked in described stay hook.
3. counterbalanced weight according to claim 1, it is characterized in that, the top being positioned at the described upper counterweight block (20) on described counterbalanced weight top is provided with holding firmware (17), described holding firmware (17) comprises clamp (171), described clamp (171) offers the spacing hole (171a) passed for described chain and the clamping hole (171b) fixing described chain, the axis being parallel of described spacing hole (171a) and described clamping hole (171b) and both be communicated with, the aperture of described spacing hole (171a) can for the two pitch chains joints be connected of described chain through, the aperture of described clamping hole (171b) is only passed for the described chain link of a joint.
4. counterbalanced weight according to claim 3, it is characterized in that, described holding firmware (17) also comprises card article (172), described card article (172) offers the gap snapped in for described chain link, described card article (172) is fixed on the connectivity part of described spacing hole (171a) and described clamping hole (171b), to fix described chain in described clamping hole (171b).
5. counterbalanced weight according to claim 4, it is characterized in that, described holding firmware (17) also comprises the feed screw nut of be connected described clamp (171) and described upper counterweight block (20), and the periphery of described clamp (171) offers the connecting thread hole coordinated with described leading screw.
6. counterbalanced weight according to claim 1, it is characterized in that, the junction of described lower counterweight block (10) and described upper counterweight block (20), the junction of two described upper counterweight blocks (20) be connected are provided with the positioning convex (15) and detent (16) that match, and described positioning convex (15) embeds described detent (16) to limit the position between the described lower counterweight block (10) that is connected and described upper counterweight block (20), described upper counterweight block (20).
7. the counterbalanced weight according to any one of claim 1-6, it is characterized in that, the bottom of described lower counterweight block (10) is provided with two positioning grooves (11), and two link spans (31) of described turntable embed corresponding described positioning groove (11) respectively and fix.
8. counterbalanced weight according to claim 7, it is characterized in that, the bottom surface of described positioning groove (11) is provided with bolt hole (12) and locating dowel pin (13), described bolt hole (12) is corresponding with the screw of the link span (31) of described turntable, and described locating dowel pin (13) can insert the described lower counterweight block (10) in pin-and-hole location of described link span (31) and the connection location of described turntable.
9. counterbalanced weight according to claim 8, it is characterized in that, described bolt hole (12) is set to counterbore, and the head mating the bolt of described bolt hole (12) is set to Long Circle, and the opening of described counterbore is the Long Circle mated with the head of described bolt.
10. a hoisting crane, comprises turntable, is fixed on the counterbalanced weight of described turntable, it is characterized in that, the counterbalanced weight of described counterbalanced weight according to any one of claim 1-9.
CN201420647320.1U 2014-10-31 2014-10-31 Hoisting crane and counterbalanced weight thereof Active CN204281129U (en)

Priority Applications (1)

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CN201420647320.1U CN204281129U (en) 2014-10-31 2014-10-31 Hoisting crane and counterbalanced weight thereof

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Application Number Priority Date Filing Date Title
CN201420647320.1U CN204281129U (en) 2014-10-31 2014-10-31 Hoisting crane and counterbalanced weight thereof

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CN204281129U true CN204281129U (en) 2015-04-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107673249A (en) * 2017-11-21 2018-02-09 徐州重型机械有限公司 A kind of Combined flat weight flexible fixing device and the crane using the device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107673249A (en) * 2017-11-21 2018-02-09 徐州重型机械有限公司 A kind of Combined flat weight flexible fixing device and the crane using the device

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